Refactor: change "folder" to "directory" where needed.

This commit fixes every instance in which the word "folder" is
incorrectly used instead of "directory".

pages/windows/attrib.md

@@ -10,7 +10,7 @@
 
 `attrib /S`
 
-- Display the attributes of the files and folders in the current directory and sub-directories:
+- Display the attributes of the files and directories in the current directory and sub-directories:
 
 `attrib /S /D`
 
@@ -22,6 +22,6 @@
 
 `attrib -S -H {{document.txt}}`
 
-- Add the hidden attribute to a folder:
+- Add the hidden attribute to a directory:
 
-`attrib +H {{path\to\folder}}`
+`attrib +H {{path\to\directory}}`

pages/windows/xcopy.md

@@ -4,31 +4,31 @@
 
 - Copy the file(s) to the specified destination:
 
-`xcopy {{path/to/file_or_folder}} {{path/to/destination}}`
+`xcopy {{path/to/file_or_directory}} {{path/to/destination}}`
 
 - List files that will be copied before copying:
 
-`xcopy {{path/to/file_or_folder}} {{path/to/destination}} /p`
+`xcopy {{path/to/file_or_directory}} {{path/to/destination}} /p`
 
 - Copy the directory structure only, excluding files:
 
-`xcopy {{path/to/file_or_folder}} {{path/to/destination}} /t`
+`xcopy {{path/to/file_or_directory}} {{path/to/destination}} /t`
 
 - Include empty directories when copying:
 
-`xcopy {{path/to/file_or_folder}} {{path/to/destination}} /e`
+`xcopy {{path/to/file_or_directory}} {{path/to/destination}} /e`
 
 - Keep the source ACL in the destination:
 
-`xcopy {{path/to/file_or_folder}} {{path/to/destination}} /o`
+`xcopy {{path/to/file_or_directory}} {{path/to/destination}} /o`
 
 - Allow resuming when network connection is lost:
 
-`xcopy {{path/to/file_or_folder}} {{path/to/destination}} /z`
+`xcopy {{path/to/file_or_directory}} {{path/to/destination}} /z`
 
 - Disable the prompt when the file exists in the destination:
 
-`xcopy {{path/to/file_or_folder}} {{path/to/destination}} /y`
+`xcopy {{path/to/file_or_directory}} {{path/to/destination}} /y`
 
 - Display detailed usage information: